How to Improve Images quality?

Hey I am having I 129*135 matrix data and using Imagsc to plot a graph but the quality of image is poor after one zoom images is not looking good. So can anyone please help me to improve image quality.

[KALYAN ACHARJYA]

Please define Improve terms in context of image.

[Walter Roberson]

Image zooming cannot create new information. You only have two basic choices:

1. Replicate pixels, ending up with a blocky appearance; or
2. Interpolate pixels, which tends to blur everything

[Govind Kumar Vaishnav]

Improve in sense when I zoom plot I should be able to see indivisual blot of my matrix. ryt now when I am doing zoom in then images is not looking good.

[Bjorn Gustavsson]

But you only have 129 x 135 pixels. That is a very small number of pixels, to get information about finer details you will have to get actual images with larger number of pixels - there is no way out.

[KALYAN ACHARJYA]

Please do re-read the commnet by @Walter, may be this single comment clarify your doubt.

Are you looking to enhance resolution? If yes, please read thread on resolution topic

link1 link2 (Recomended)